Integrating compiled native WebRTC with CallKit on iOS platform in Swift

As a client looking for a Freelancer, I am seeking assistance with integrating compiled native WebRTC with CallKit on iOS platform in Swift. I have not yet started the process of compiling the native WebRTC code, so I am looking for someone who can do this for the project. My desired outcome with the CallKit integration is for both incoming calls to display on the lock screen and for incoming calls to be answered directly from the lock screen. The preferred language for this project is Swift.
We're using Capacitor as middleware, but we need native implementation to add to the plugin we already have.